First-half goals from Dagnall and Marlon Harewood ensured the tie went with the form book, with Dagnall adding a third late on as David Flitcroft's Tykes clinched their seventh win in their last eight matches.
The 2008 FA Cup semi-finalists survived a spirited second-half fightback from MK Dons, who pulled a goal back through Dean Bowditch but could not make further inroads.
- Sports & Recreation
- David Flitcroft
- Marlon Harewood